Toolkit
toolkit.relentless.london · client-side
Toolkit for Labels
Fast, consistent, and client-side tools for artwork, audio, and release metadata — built for real-world label workflows.
toolkit.relentless.london
All processing happens in your browser
📦
Metadata
Release Builder
Scan client zips, rename audio, convert artwork to 3000×3000 JPEG, export CSV, and bundle uploads.
📝
Docs
Label Copy Generator
Fill a simple form to create professional label copy with tracks, writers, publishers, and legal lines.
🖼️
Artwork
Artwork Resizer
Center-crop and convert any image to a compliant 3000×3000 JPEG in one click.
🎨
Artwork
Artwork Overlay
Place your logo with adjustable position/scale and export a clean JPEG.
🎬
Promo
Video Builder
Render MP4s from artwork + audio (1080p/4K), with blurred fill or bars and a simple crop overlay.
ℹ️
Info
About
What the toolkit includes and who to contact if you need changes.